This 2015 BMW 5 Series 530d M Sport is a stunning and well maintained car. Always serviced on time by BMW or a specialist and spared no repair to it. 138526 miles mostly motorway miles. Unfortunately, since last week started making a knocking noise from the engine, but still starts and drives. Suspected crank bearing. Don’t really have time and nerves to fix it, is a good opportunity for someone who can.